ethyl 2-(butylcarbamothioylamino)-4,5-dimethylthiophene-3-carboxylate

[(丁基亚胺)二(亚甲基)]二膦酸

ethyl 1-butyl-4-phenylpiperidine-4-carboxylate

3-butyl-3-(butylamino)-1-methylquinoline-2,4-dione

3-butyl-3-(butylamino)-1-phenylquinoline-2,4-dione